Molding apparatus



July 14, 192s.

G. A. BONELLI HOLDING APPARATUS Filed June 24. 1922 Patented July 14, 1925.

UNITED STATES GEORGE A. BONELLI, or KINGMAN, ARIZONA.

IvIoLnINe APPARATUS.

Application tiled June 24,1922. SeriaLNo. 570,570.

To all whom t may 'concer/n.:

Be it known that I, GEORGE A. BONELLI, a citizen of the United States of America, residing at Kingman, Vin the county of Mohave and State of Arizona, have invented certain new and useful Improvements in Molding Apparatus, of which the following is a specification, reference being had therein to the accompanyingdrawing. t

My invention relates to improvementsl in molds for use in molding concrete blocks or columns and has forits object to provide a mold capable of ready removal from the formed object, and capable ofrepeated use.

In the drawings- Fig. 1 is a transverse sectional view of the mold employed in forming theV hollow concrete slabs usedV in the construction of said building.

Fig. 2 is a side elevation of a fragment of one end of the mold shown in Fig. 1.

Figure 3 is a transverse vertical sectional view of the mold employed in producing a coping or balustrade, and, i

Figure 4 is a side elevat'on of a fragment of one end of the mold illustrated in Figure 3.

As shown in the drawings, in the form of the blocks 33 I employ an inner collapsible form having two halves 36-36, and an outer form comprising side members 37, and bottom plates 92-92 contoured to support the strip 38 in Fig. 1, to form the groove 35; said outer form having at its top the flared open mouth 39 to form the tongue 34.

The strip 38 rests upon the flanges 91, which flanges 91 are integral with the bottom strips 92; each of said strips 92 carries an ear 93, which ears 93 are joined by the links 94 to the frame members 40 and 41 respectively so that the separation of said members 40-41 (see dotted lines in Fig. 1) will thrust the strips 92-92 inwardly to release the block formed within the mold; the members 40-41 are hinged to the brackets 95-95 by the pins 96. Said outer form 37 is mounted in a frame comprising the two parts 40-41, the part 40 having the' its top and sides to release the formed block 33, as indicated by dotted linesin Fig. 1. The said mold has a flat end closure 85 as Vshown in Fig. 2.

One of the inner-form members 36 (see Fig. 1) is expanded or contracted by means of the rods 48-49, having an eccentric connection 50 which is rotated to force said rods 48-49 outwardly, expanding the formmember 36 to which they are attached to operative position, or to draw said rods 48-49 toward each other to contract said member 36 and permit it tol be withdrawn from the form` andsaid concrete block 33; when the opposing member 36 may be readily flexed and withdrawn. Y

In forming the hollow fence or balustrade 14 the mold shown in Fig. 3 is employed; in whichmold the inner form 51 is a single me# tallic sheet and is expanded or contracted in the usual manner by thel hinged-bars 52. The outer form comprises a single metallic sheet 53, having at its upper edge a funnel 54 for the purpose of flowing the concrete, and having its flanges 55-55 spiked or otherwise secured to the wooden foundation. mold 56. A suspension pin 57 is mounted transversely through the form 53 to support the inner form 51 (see Fig. 3) and said pin 57 is left in place when the balustrade 14 has been formed and the outer form 53 removed therefrom` when the protruding ends of the'pin 57 will be cut OflI flush with the face of the formed concrete. The inner form AV51 being formed of a single metallic sheet its` over-lapping edges 81 and 82 are held in juxtaposition by the spring 83; and said form 51 is'pro-vided near its opposite end with the handle 84. Such removal is accomplished by detaching the form 53 from the base 56. Said mold (of Fig. 3) has a flat end-closure 90 as shown in Fig. 4.

In the use of the apparatus freight and material costs, and labor conditions will determine whether to build the blocks, pipe connections and other parts to be incorporated, near or remote from the building site; and like economic conditions will determine how much of the structure shall be flowed in place and how much built of previously prepared constituentparts. Hence the described apparatus is devised to meet shifting labor conditions and shifting sources of material supply, as well as variable freight rates.

Having thus described my invention, what in moldpclosing position and to separate l claim as new, and desire to secure by Letters Patent7 1sformed to provide longitudinallyseparable mold parts7 other mold parts arranged at one end oi said longitudinally separable mold parts7 jaws embracing said first nien-y tioned mold parts and pivoted. adjacent 'to one'of their ends for swinging movement, meanscooperative vwith the other ends of said aws for alternately locking4 the same in a mold closingposition, and to separate them te collapse said mold parts, and means connecting the pivoted ends et the jaws with the last mentioned mold parts for moving the latter,correspondingly lwith the swing-r. ingmovementof said jaws.

2. In a Vmold apparatus, a. moldl body'. termed-to provide vertical longitudinally separable vmold parte, other moldvparts arranged.. atthe loweri sides of said vertical mold :pa-its, vertically dis-posedjaws embrac-` ing' said meldparts,andvpiv-oted for swing@ ing movements adj acent. their lower -e-nds` means cooperative withthefupper ends of said jawsfor alternatelylockingthe same -separablepartsa other separable mold parts arranged at one end of saidverticalniold parts, a .base disposed belowv said moldparits', vertically disposed kjaws embracing said vertical mold'parts and vpivote'd adjacent their lower ends to said base for swinging movements'to and from mold closing .position, means cooperative with the upper ends,

of saidsjaws for locking the sainein their mold closingposition' and toseparate them t0 release said'mold-partsw and means conneotingglfthe lower endsf of said (jaws with said other mold parts for movingthersame Y to land from closed position-correspondingly with 'the swinging: movements Aof' said jaws and said vertical mold parts In testimonywhereof I have hereunto Yafffixed invsignature.0 i

esonera. Bonanni; 

